The Portugal international's current deal with the Santiago Bernabeu side is due to expire in the summer of 2015 and he has been linked with a move away from the Liga outfit.

However, the 28-year-old has little doubt that he will ink a contract extension in the not too distant future.

"I know that we will soon reach an agreement. I am feeling very well. I'm calm and not too worried about it," Ronaldo was quoted as saying by Reuters in the wake of Portugal's 1-0 win over Russia on Friday.

The prolific attacker joined Madrid from United in the summer of 2009 and has since become a key player at the Bernabeu club.

Ronaldo netted an impressive 55 goals in 55 appearances in all competitions for Madrid in 2012-13.